CN105911728A - Device and method for measuring magnitude of stress of liquid crystal display - Google Patents
Device and method for measuring magnitude of stress of liquid crystal display Download PDFInfo
- Publication number
- CN105911728A CN105911728A CN201610438943.1A CN201610438943A CN105911728A CN 105911728 A CN105911728 A CN 105911728A CN 201610438943 A CN201610438943 A CN 201610438943A CN 105911728 A CN105911728 A CN 105911728A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- crystal display
- briquetting
- elastic parts
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention relates to the technical field of display, and discloses a device and method for measuring the magnitude of stress of a liquid crystal display. The device comprises a base, a pressing block located on the base, an elastic assembly located between the base and the pressing block and used for supporting the pressing block, and a measurement device for measuring the displacement of the telescopic movement of the elastic assembly, wherein a bearing face for bearing the liquid crystal display is arranged on the side, away from the base, of the pressing block, and the elastic assembly can move telescopically in the direction perpendicular to the base. By means of the device, the change situation between the magnitude of stress of the liquid crystal display and the yellowing degree of the liquid crystal display can be evaluated.
Description
Technical field
The present invention relates to Display Technique field, particularly to a kind of device for measuring liquid crystal display stress size
And measuring method.
Background technology
Amount of liquid crystal is a most important parameter of liquid crystal display, and the bigger amount of liquid crystal upper limit can improve liquid crystal display
Yield, but simultaneously, the amount of liquid crystal of liquid crystal display is the most, when liquid crystal display is assembled in complete machine, liquid crystal
The most easily there is the phenomenon that screen turns to be yellow in screen, and this is primarily due to after liquid crystal display is assembled in complete machine to be subject to
Certain pressure effect, and the degree of liquid crystal display jaundice is relevant to the size of this pressure.
Therefore, in order to take into account yield and the yield of complete machine section of liquid crystal display, it is necessary to predict current liquid in advance
Can or can not there is yellowing phenomenon in complete machine section in the amount of liquid crystal of brilliant screen, i.e. need the stress size for liquid crystal display with
Variation relation between its yellowing is tested；Therefore current, technical field of liquid crystal display needs one badly
The device of variation relation situation between liquid crystal display stress size and its yellowing can be measured.
Summary of the invention
The invention provides a kind of device for measuring liquid crystal display stress size and measuring method thereof, in order to comment
Survey the variation relation situation between liquid crystal display stress size and its yellowing.
For reaching above-mentioned purpose, the present invention provides techniques below scheme:
A kind of device for measuring liquid crystal display stress size, including:
Base；
Being positioned at the briquetting on described base, described briquetting deviates from the side of described base and is provided with for carrying liquid crystal
The loading end of screen；
Between described base and described briquetting, for supporting the elastic parts of described briquetting, described elasticity
Assembly can be along the direction stretching motion being perpendicular to base；
For measuring the measurement apparatus of the displacement of described elastic parts stretching motion.
When utilizing said apparatus to measure liquid crystal display stress size, first liquid crystal display can be positioned over holding of briquetting
On section, the most gradually press liquid crystal display, owing to, during pressing liquid crystal display, pressure can pass through briquetting
It is applied on elastic parts and then causes elastic parts to be compressed, and elastic parts is compressed produced position
Move x change to be detected by measurement apparatus and read, it is thus possible to by the elastic force formula of elastic parts
F=kx calculates the force variation situation of elastic parts, and then draws the pressure changing of pressing process；
Therefore, by during pressing, observe and record color situation of change and the measurement apparatus of liquid crystal display
Reading situation, i.e. can obtain between the color situation of change of liquid crystal display and liquid crystal display pressure size
Relation.
In sum, said apparatus can be in order to evaluate and test the change between liquid crystal display stress size and its yellowing
Change relation situation.
Preferably, the described device for measuring liquid crystal display stress size also includes being arranged at described base and institute
State between briquetting, for making the described briquetting can be along being perpendicular to the guiding mechanism that base direction is moved.
Preferably, described guiding mechanism is linear bearing.
Preferably, described base is provided with the Baltimore groove for accommodating briquetting, and described briquetting is positioned at described Baltimore groove
In.
Preferably, described elastic parts is spring part.
Preferably, described briquetting is provided with stopper slot, described elastic parts towards the side of described Baltimore groove diapire
It is positioned at described stopper slot, and the diapire of one end of described elastic parts and described stopper slot offsets, described bullet
The property other end of assembly offsets with the diapire of described Baltimore groove.
Preferably, the described device for measuring liquid crystal display stress size includes two described elastic parts；Institute
Stating briquetting to be provided with and said two elastic parts stopper slot one to one, each described elastic parts is positioned at
In corresponding stopper slot.
Preferably, described measurement apparatus includes the grating scale being installed between described base and described briquetting.
Preferably, described grating scale includes scale grating and grating reading head, and wherein, described scale grating is pacified
Be loaded on the sidewall of described Baltimore groove, described grating reading head be installed on described briquetting with described Baltimore groove
The side that sidewall is relative.
A kind of size of the power utilizing the measurement device described in any of the above-described technical scheme to make liquid crystal display turn yellow
Method, including:
Being positioned over by liquid crystal display on the loading end of described briquetting, the exiting surface of described liquid crystal display deviates from described briquetting
Arrange；
Record the initial reading x of described measurement apparatus0；
Gradually press the test zone on described liquid crystal display, and observe the color change of described liquid crystal display；
When the color of described liquid crystal display starts to occur turning yellow, record the reading x of the most described measurement apparatus1；
Reading x according to described measurement apparatus0And x1, and formula F=k (x1-x0) calculate make described liquid crystal
The size of the power that screen turns yellow, wherein, F is the power making described liquid crystal display turn yellow, and k is described elastic parts
Coefficient of elasticity.
Accompanying drawing explanation
The tangent plane knot of a kind of device for measuring liquid crystal display stress size that Fig. 1 provides for the embodiment of the present invention
Structure schematic diagram；
Fig. 2 cuts for the part of a kind of device for measuring liquid crystal display stress size that the embodiment of the present invention provides
Face structural representation；
The device for measuring liquid crystal display stress size that Fig. 3 provides for utilizing the embodiment of the present invention is to liquid crystal display
Carry out the plan structure schematic diagram tested；
Fig. 4 makes liquid for utilize that the embodiment of the present invention provides for measuring the measurement device of liquid crystal display stress size
The method flow diagram of the size of the power that brilliant screen turns yellow.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
Refer to Fig. 1～Fig. 4.
As shown in FIG. 1 to 3, a kind of dress for measuring liquid crystal display stress size is embodiments provided
Putting, this device includes:
Base 1；
The briquetting 2 being positioned on base 1, briquetting 2 deviates from the side of base 1 and is provided with for carrying liquid crystal display 6
Loading end 21；
Between base 1 and briquetting 2, for supporting the elastic parts 3 of briquetting 2, elastic parts 3 can
Along the direction stretching motion being perpendicular to base 1；
For measuring the measurement apparatus 4 of the displacement of elastic parts 3 stretching motion.
When utilizing said apparatus to measure liquid crystal display 6 stress size, first liquid crystal display 6 can be positioned over briquetting
On the loading end 21 of 2, the most gradually pressing liquid crystal display 6, owing to, during pressing liquid crystal display 6, pressing
Power can be applied on elastic parts 3 by briquetting 2 and then be caused elastic parts 3 to be compressed, and elastic group
Part 3 can be detected and be read by measurement apparatus 4 by compression produced displacement x change, it is thus possible to
Elastic force formula F=kx by elastic parts 3 calculates the force variation situation of elastic parts 3, and then
Draw the pressure changing of pressing process；Therefore, by pressing during, observe and record liquid crystal
The color situation of change of screen 6 and the reading situation of measurement apparatus 4, i.e. can obtain the color of liquid crystal display 6
Relation between situation of change and liquid crystal display 6 pressure size, and then liquid crystal display 6 stress can be evaluated and tested out
Variation relation situation between size and its yellowing.
In sum, said apparatus can be in order to evaluate and test the change between liquid crystal display stress size and its yellowing
Change relation situation.
As it is shown in figure 1, in a kind of specific embodiment, the present invention for measuring liquid crystal display stress size
Device, it is also possible to include being arranged between base 1 and briquetting 2, for making the briquetting 2 can be relative to base 1
Guiding mechanism 5 along direction (i.e. the telescopic direction of the elastic parts 3) movement being perpendicular to base 1.
This guiding mechanism 5 can ensure that liquid crystal display 6 and briquetting 2 moving direction under pressure accurately,
I.e. can ensure that liquid crystal display 6 and briquetting 2 move along the telescopic direction of elastic parts 3 under pressure, and
And, guiding mechanism 5 can also improve liquid crystal display 6 and briquetting 2 stability in moving process and bullet
The property assembly 3 stability in compression process and reliability.
As it is shown in figure 1, on the basis of above-described embodiment, in a kind of preferred embodiment, guiding mechanism 5
It can be linear bearing.Relative motion between base 1 and briquetting 2 can be had by linear bearing structure to be led
To effect, and the frictional force that bearing arrangement is in motion process is the least, therefore, utilizes bearing as guiding
Mechanism 5 can reduce the error of the liquid crystal display force value finally given, i.e. can improve tonometric accurately
Property.
As depicted in figs. 1 and 2, on the basis of the various embodiments described above, in a kind of specific embodiment, the end
Seat 1 can be provided with the Baltimore groove 11 for accommodating briquetting 2, and briquetting 2 is positioned at this Baltimore groove 11.
As it is shown in figure 1, on the basis of above-described embodiment, in a kind of specific embodiment, elastic parts 3
It can be spring part.In a kind of preferred embodiment, briquetting 2 is provided with towards the side of Baltimore groove 11 diapire
Stopper slot 22, spring part is positioned at stopper slot 22, and the diapire of one end of spring part and stopper slot 22 offsets,
The other end of spring part offsets with the diapire of Baltimore groove 11.Spring part is positioned at stopper slot 22 can be further
Guarantee its stability in compression process and reliability.
As it is shown in figure 1, it is further preferred that the device being used for measuring liquid crystal display stress size of the present invention can
To include two spring parts；Briquetting 2 is provided with and this two spring parts, two stopper slot 22 one to one, often
One spring part is positioned at a corresponding stopper slot 22.
It should be noted that the present invention includes several spring part for the device measuring liquid crystal display stress size,
Then the pressure suffered by liquid crystal display 6 will be averagely allocated to these spring parts, so, suffered by liquid crystal display 6
Pressure compresses produced elastic force sum equal to all spring parts, and then, calculate eventually through formula F=kx
During the size of liquid crystal display 6 pressure, wherein, k should be the elasticity values that all spring parts are common.
As illustrated in fig. 1 and 2, on the basis of above-mentioned two embodiment, in a kind of specific embodiment, survey
Amount device 5 can include the grating scale being installed between base 1 and briquetting 2.Grating scale utilizes grating
The measurement apparatus of optical principle work, can be used as the detection of straight-line displacement, and it is big that it has detection range, detection
Precision is high, the feature of fast response time.
As in figure 2 it is shown, in a kind of specific embodiment, as the grating scale bag of measurement apparatus in the present invention 4
Including scale grating 41 and grating reading head 42, wherein, scale grating 41 is installed on base 1 Baltimore groove 11
Sidewall on, grating reading head 42 is installed on the side that briquetting 1 is relative with the sidewall of Baltimore groove 11, and with
Scale grating 41 is oppositely arranged.
When liquid crystal display 6 pressurized cause briquetting 2 towards elasticity of compression assembly 3 direction move time, briquetting 2
Side will be moved relative to the sidewall of Baltimore groove 11, and then scale grating 41 and the finger of grating reading head 42
Showing and will produce Moire fringe between grating, this Moire fringe can be converted into digital electric signal and form grating
The reading of chi.
As shown in Figure 4, the embodiment of the present invention additionally provides the survey of a kind of device utilized in any of the above-described embodiment
The method measuring the size of the power making liquid crystal display turn yellow, as shown in Figures 1 to 3, the method includes:
Step S101, is positioned over liquid crystal display 6 on the loading end 21 of briquetting 2, the exiting surface of liquid crystal display 6
Deviate from briquetting 2 to arrange；
Step S102, the initial reading x of recording measuring device 40；
Step S103, the gradually test zone 61 on pressing liquid crystal display 6, and observe the color of liquid crystal display 6
Change；
Step S104, when the color of liquid crystal display 6 starts to occur turning yellow, records the reading of now measurement apparatus 4
Number x1；
Step S105, according to the reading x of measurement apparatus 40And x1, and formula F=k (x1-x0) calculate
Making the size of the power that liquid crystal display turns yellow, wherein, F is the power making liquid crystal display turn yellow, and k is elastic parts 3
Coefficient of elasticity.
As it is shown on figure 3, owing to liquid crystal display 6 area is relatively big, so, can liquid crystal display 6 be divided into several
Test zone 61 also carries out pressing test, final acquisition liquid crystal display 6 respectively to each test zone 61
Relation between color situation of change and the pressure size of each test zone, and then can comment more accurately
Survey the variation relation situation between liquid crystal display 6 stress size and its yellowing.
Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not take off
From the spirit and scope of the present invention.So, if these amendments of the present invention and modification belong to right of the present invention
Require and within the scope of equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. the device being used for measuring liquid crystal display stress size, it is characterised in that including:
Base；
Being positioned at the briquetting on described base, described briquetting deviates from the side of described base and is provided with for carrying liquid crystal
The loading end of screen；
Between described base and described briquetting, for supporting the elastic parts of described briquetting, described elasticity
Assembly can be along the direction stretching motion being perpendicular to base；
For measuring the measurement apparatus of the displacement of described elastic parts stretching motion.
Device for measuring liquid crystal display stress size the most according to claim 1, it is characterised in that
Also include being arranged between described base and described briquetting, for making the described briquetting can be along being perpendicular to base direction
The guiding mechanism of movement.
Device for measuring liquid crystal display stress size the most according to claim 2, it is characterised in that
Described guiding mechanism is linear bearing.
4. according to the device for measuring liquid crystal display stress size described in any one of claims 1 to 3, its
Being characterised by, described base is provided with the Baltimore groove for accommodating briquetting, and described briquetting is positioned at described Baltimore groove.
Device for evaluating and testing liquid crystal display stressing conditions the most according to claim 4, it is characterised in that
Described elastic parts is spring part.
Device for measuring liquid crystal display stress size the most according to claim 5, it is characterised in that
Described briquetting is provided with stopper slot towards the side of described Baltimore groove diapire, and described elastic parts is positioned at described spacing
In groove, and the diapire of one end of described elastic parts and described stopper slot offsets, another of described elastic parts
The diapire with described Baltimore groove is held to offset.
Device for measuring liquid crystal display stress size the most according to claim 6, it is characterised in that
Including two described elastic parts；Described briquetting is provided with the most spacing with said two elastic parts
Groove, each described elastic parts is positioned at corresponding stopper slot.
Device for measuring liquid crystal display stress size the most according to claim 4, it is characterised in that
Described measurement apparatus includes the grating scale being installed between described base and described briquetting.
Device for measuring liquid crystal display stress size the most according to claim 8, it is characterised in that
Described grating scale includes scale grating and grating reading head, and wherein, described scale grating is installed on described spill
On the sidewall of groove, described grating reading head is installed on the side that the sidewall with described Baltimore groove of described briquetting is relative
Face.
10. the power that the measurement device utilized described in any one of claim 1～9 makes liquid crystal display turn yellow big
Little method, it is characterised in that including:
Being positioned over by liquid crystal display on the loading end of described briquetting, the exiting surface of described liquid crystal display deviates from described briquetting
Arrange；
Record the initial reading x of described measurement apparatus0；
Gradually press the test zone on described liquid crystal display, and observe the color change of described liquid crystal display；
When the color of described liquid crystal display starts to occur turning yellow, record the reading x of the most described measurement apparatus1；
Reading x according to described measurement apparatus0And x1, and formula F=k (x1-x0) calculate make described liquid crystal
The size of the power that screen turns yellow, wherein, F is the power making described liquid crystal display turn yellow, and k is described elastic parts
Coefficient of elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610438943.1A CN105911728B (en) | 2016-06-17 | 2016-06-17 | For measuring the device and its measurement method of liquid crystal display stress size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610438943.1A CN105911728B (en) | 2016-06-17 | 2016-06-17 | For measuring the device and its measurement method of liquid crystal display stress size |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105911728A true CN105911728A (en) | 2016-08-31 |
| CN105911728B CN105911728B (en) | 2019-04-12 |
Family
ID=56751629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610438943.1A Active CN105911728B (en) | 2016-06-17 | 2016-06-17 | For measuring the device and its measurement method of liquid crystal display stress size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105911728B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108898984A (en) * | 2018-08-03 | 2018-11-27 | 武汉精测电子集团股份有限公司 | Floating tool and contact-type detection for display panel gamma detection |
| CN111596483A (en) * | 2020-05-13 | 2020-08-28 | 安徽帝显电子有限公司 | Color-changing liquid crystal light guide film and production method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050285105A1 (en) * | 2004-06-25 | 2005-12-29 | Innolux Display Corp. | Pressure inspector and method for inspecting liquid crystal display panels |
| CN102520538A (en) * | 2011-12-29 | 2012-06-27 | 友达光电（苏州）有限公司 | Welding point testing tool |
| KR20130011455A (en) * | 2011-07-21 | 2013-01-30 | 엘지디스플레이 주식회사 | Automated testing apparatus for display device |
| CN204807861U (en) * | 2015-07-24 | 2015-11-25 | 昆山龙腾光电有限公司 | Press tool |
| CN105136053A (en) * | 2015-05-22 | 2015-12-09 | 合肥京东方光电科技有限公司 | Gap adjusting device, gap adjusting method and transmission equipment |
| CN204989682U (en) * | 2015-10-13 | 2016-01-20 | 昆山龙腾光电有限公司 | Liquid crystal display panel detection tool |
-
2016
- 2016-06-17 CN CN201610438943.1A patent/CN105911728B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050285105A1 (en) * | 2004-06-25 | 2005-12-29 | Innolux Display Corp. | Pressure inspector and method for inspecting liquid crystal display panels |
| KR20130011455A (en) * | 2011-07-21 | 2013-01-30 | 엘지디스플레이 주식회사 | Automated testing apparatus for display device |
| CN102520538A (en) * | 2011-12-29 | 2012-06-27 | 友达光电（苏州）有限公司 | Welding point testing tool |
| CN105136053A (en) * | 2015-05-22 | 2015-12-09 | 合肥京东方光电科技有限公司 | Gap adjusting device, gap adjusting method and transmission equipment |
| CN204807861U (en) * | 2015-07-24 | 2015-11-25 | 昆山龙腾光电有限公司 | Press tool |
| CN204989682U (en) * | 2015-10-13 | 2016-01-20 | 昆山龙腾光电有限公司 | Liquid crystal display panel detection tool |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108898984A (en) * | 2018-08-03 | 2018-11-27 | 武汉精测电子集团股份有限公司 | Floating tool and contact-type detection for display panel gamma detection |
| CN108898984B (en) * | 2018-08-03 | 2023-10-24 | 武汉精测电子集团股份有限公司 | Floating tool for gamma detection of display panel and contact type detection device |
| CN111596483A (en) * | 2020-05-13 | 2020-08-28 | 安徽帝显电子有限公司 | Color-changing liquid crystal light guide film and production method thereof |
| CN111596483B (en) * | 2020-05-13 | 2022-09-09 | 安徽帝显电子有限公司 | Color-changing liquid crystal light guide film and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105911728B (en) | 2019-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205482775U (en) | Thickness measurement device based on two amesdials | |
| CN101319864A (en) | Plug gauge head pore diameter measurement mechanism | |
| CN106500896A (en) | The detection means of spring force | |
| CN108760201A (en) | Waveform spring ancillary test tooling and test method | |
| CN102735133B (en) | Installation hole detection device | |
| CN105865316B (en) | For detecting the measuring scale of surface of concrete structure flatness | |
| CN105911728A (en) | Device and method for measuring magnitude of stress of liquid crystal display | |
| CN205642274U (en) | LVDT displacement sensor calibrating device | |
| CN103776414A (en) | Flatness detection device | |
| CN208238700U (en) | Raceway gap measuring device | |
| CN2932300Y (en) | Size inspection device | |
| CN208421071U (en) | A kind of multichannel precision resistance detection device | |
| CN103486953A (en) | Piston ring deflection general gauge | |
| CN207798050U (en) | A kind of clutch disc group height measurer | |
| CN203824505U (en) | Testing fixture used for detecting workpiece planeness | |
| CN207379394U (en) | Suitcase dimension measuring device | |
| CN108981633A (en) | A kind of detection device of engine cylinder body | |
| CN105444646B (en) | A kind of device for being used to measure height and the method for measuring developer solution nozzle height | |
| CN208155548U (en) | Waveform spring ancillary test tooling | |
| CN208833133U (en) | A kind of precision gear processing detection device | |
| CN103278409A (en) | Detection device and detection method for elastic characteristic value of small-scale dish-shaped gasket | |
| CN203837678U (en) | Full-automatic diameter, inner diameter, outer chamfer and height detection device for deep groove ball bearing | |
| CN206019523U (en) | Temperature controller testboard | |
| CN208383012U (en) | Vehicle steering wheel decoration detection device | |
| CN103668745B (en) | Parallelism detecting device of flat knitting machine sky rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230118 Address after: Room 518, No. 29, Taizhong Road, Wangtai Street Office, Huangdao District, Qingdao, Shandong 266425 Patentee after: Qingdao BOE Optoelectronic Technology Co.,Ltd. Patentee after: BOE TECHNOLOGY GROUP Co.,Ltd. Address before: 065500 No. 5 road, North District, Gu'an Industrial Zone, west of Jingkai Road, Gu'an County, Langfang City, Hebei Province Patentee before: BOE (HEBEI) MOBILE DISPLAY TECHNOLOGY Co.,Ltd. Patentee before: BOE TECHNOLOGY GROUP Co.,Ltd. |